How to give access ssrs report server to group of user

Question

hi,

        i have created report server project ,its deployed in local system and working well because i have created user access for me  in new role assignment in reporting servicess .

my problem is when try host in client server  how to give access to all the users?

 

if i creat new role assignemnt to user then its working how to give access to group?

wher i can find group name for the server?   every connected with same network by WIFI how can i test with group?